PLEASE HELP THIS IS DUE ASAP

Divide. –4.2 ÷ 6 = a –0.7 b 0.7 c –7 d 7 me

You are choosing between two health clubs. club a offers membership for a fee of $ 28 plus a monthly fee of $ 20. club b offers membership for a fee of $ 20 plus a monthly fee of $ 22. after how many months will the total cost of each health club be the same? what will be the total cost for each club? in __ months the total cost of each health club will be the same.

4percent of a number is what fraction of that number? ? i really need asap